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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/cache_storage/cache_storage_index.h"
#include <list>
#include <utility>
#include "testing/gtest/include/gtest/gtest.h"
namespace content {
constexpr char16_t kUnicodeHighSurrogate = 0xD800;
TEST(CacheStorageIndexTest, TestDefaultConstructor) {
CacheStorageIndex index;
EXPECT_EQ(0u, index.num_entries());
EXPECT_TRUE(index.ordered_cache_metadata().empty());
EXPECT_EQ(0u, index.GetPaddedStorageSize());
}
TEST(CacheStorageIndexTest, TestSetCacheSize) {
CacheStorageIndex index;
index.Insert(
CacheStorageIndex::CacheMetadata(u"foo", /*size=*/12, /*padding=*/2));
index.Insert(
CacheStorageIndex::CacheMetadata(u"bar", /*size=*/19, /*padding=*/3));
index.Insert(
CacheStorageIndex::CacheMetadata(u"baz", /*size=*/1000, /*padding=*/4));
EXPECT_EQ(3u, index.num_entries());
ASSERT_EQ(3u, index.ordered_cache_metadata().size());
EXPECT_EQ(12 + 2 + 19 + 3 + 1000 + 4, index.GetPaddedStorageSize());
EXPECT_TRUE(index.SetCacheSize(u"baz", 2000));
EXPECT_EQ(12 + 2 + 19 + 3 + 2000 + 4, index.GetPaddedStorageSize());
EXPECT_FALSE(index.SetCacheSize(u"baz", 2000));
EXPECT_EQ(12 + 2 + 19 + 3 + 2000 + 4, index.GetPaddedStorageSize());
EXPECT_EQ(2000, index.GetCacheSizeForTesting(u"baz"));
EXPECT_EQ(CacheStorage::kSizeUnknown,
index.GetCacheSizeForTesting(u"<not-present>"));
}
TEST(CacheStorageIndexTest, TestSetCachePadding) {
CacheStorageIndex index;
index.Insert(
CacheStorageIndex::CacheMetadata(u"foo", /*size=*/12, /*padding=*/2));
index.Insert(
CacheStorageIndex::CacheMetadata(u"bar", /*size=*/19, /*padding=*/3));
index.Insert(
CacheStorageIndex::CacheMetadata(u"baz", /*size=*/1000, /*padding=*/4));
EXPECT_EQ(3u, index.num_entries());
ASSERT_EQ(3u, index.ordered_cache_metadata().size());
EXPECT_EQ(12 + 2 + 19 + 3 + 1000 + 4, index.GetPaddedStorageSize());
EXPECT_TRUE(index.SetCachePadding(u"baz", 80));
EXPECT_EQ(12 + 2 + 19 + 3 + 1000 + 80, index.GetPaddedStorageSize());
EXPECT_FALSE(index.SetCachePadding(u"baz", 80));
EXPECT_EQ(12 + 2 + 19 + 3 + 1000 + 80, index.GetPaddedStorageSize());
EXPECT_EQ(80, index.GetCachePaddingForTesting(u"baz"));
EXPECT_EQ(CacheStorage::kSizeUnknown,
index.GetCachePaddingForTesting(u"<not-present>"));
}
TEST(CacheStorageIndexTest, TestDoomCache) {
CacheStorageIndex index;
index.Insert(
CacheStorageIndex::CacheMetadata(u"foo", /*size=*/12, /*padding=*/2));
index.Insert(
CacheStorageIndex::CacheMetadata(u"bar", /*size=*/19, /*padding=*/3));
index.Insert(
CacheStorageIndex::CacheMetadata(u"baz", /*size=*/1000, /*padding=*/4));
EXPECT_EQ(3u, index.num_entries());
ASSERT_EQ(3u, index.ordered_cache_metadata().size());
EXPECT_EQ(12 + 2 + 19 + 3 + 1000 + 4, index.GetPaddedStorageSize());
index.DoomCache(u"bar");
EXPECT_EQ(2u, index.num_entries());
ASSERT_EQ(2u, index.ordered_cache_metadata().size());
EXPECT_EQ(12 + 2 + 1000 + 4, index.GetPaddedStorageSize());
index.RestoreDoomedCache();
EXPECT_EQ(3u, index.num_entries());
ASSERT_EQ(3u, index.ordered_cache_metadata().size());
auto it = index.ordered_cache_metadata().begin();
EXPECT_EQ(u"foo", (it++)->name);
EXPECT_EQ(u"bar", (it++)->name);
EXPECT_EQ(u"baz", (it++)->name);
EXPECT_EQ(12 + 2 + 19 + 3 + 1000 + 4, index.GetPaddedStorageSize());
index.DoomCache(u"foo");
EXPECT_EQ(2u, index.num_entries());
ASSERT_EQ(2u, index.ordered_cache_metadata().size());
EXPECT_EQ(19 + 3 + 1000 + 4, index.GetPaddedStorageSize());
index.FinalizeDoomedCache();
EXPECT_EQ(2u, index.num_entries());
ASSERT_EQ(2u, index.ordered_cache_metadata().size());
EXPECT_EQ(19 + 3 + 1000 + 4, index.GetPaddedStorageSize());
}
TEST(CacheStorageIndexTest, TestDelete) {
CacheStorageIndex index;
index.Insert(
CacheStorageIndex::CacheMetadata(u"bar", /*size=*/19, /*padding=*/2));
index.Insert(
CacheStorageIndex::CacheMetadata(u"foo", /*size=*/12, /*padding=*/3));
index.Insert(
CacheStorageIndex::CacheMetadata(u"baz", /*size=*/1000, /*padding=*/4));
EXPECT_EQ(3u, index.num_entries());
ASSERT_EQ(3u, index.ordered_cache_metadata().size());
EXPECT_EQ(19 + 2 + 12 + 3 + 1000 + 4, index.GetPaddedStorageSize());
auto it = index.ordered_cache_metadata().begin();
EXPECT_EQ(u"bar", it->name);
EXPECT_EQ(19u, it->size);
EXPECT_EQ(2u, it->padding);
it++;
EXPECT_EQ(u"foo", it->name);
EXPECT_EQ(12u, it->size);
EXPECT_EQ(3u, it->padding);
it++;
EXPECT_EQ(u"baz", it->name);
EXPECT_EQ(1000u, it->size);
EXPECT_EQ(4u, it->padding);
index.Delete(u"bar");
EXPECT_EQ(2u, index.num_entries());
ASSERT_EQ(2u, index.ordered_cache_metadata().size());
EXPECT_EQ(12 + 3 + 1000 + 4, index.GetPaddedStorageSize());
it = index.ordered_cache_metadata().begin();
EXPECT_EQ(u"foo", it->name);
EXPECT_EQ(12u, it->size);
EXPECT_EQ(3u, it->padding);
it++;
EXPECT_EQ(u"baz", it->name);
EXPECT_EQ(1000u, it->size);
EXPECT_EQ(4u, it->padding);
index.Delete(u"baz");
EXPECT_EQ(1u, index.num_entries());
ASSERT_EQ(1u, index.ordered_cache_metadata().size());
EXPECT_EQ(12 + 3, index.GetPaddedStorageSize());
it = index.ordered_cache_metadata().begin();
EXPECT_EQ(u"foo", it->name);
EXPECT_EQ(12u, it->size);
EXPECT_EQ(3u, it->padding);
}
TEST(CacheStorageIndexTest, TestInsert) {
CacheStorageIndex index;
index.Insert(
CacheStorageIndex::CacheMetadata(u"foo", /*size=*/12, /*padding=*/2));
index.Insert(
CacheStorageIndex::CacheMetadata(u"bar", /*size=*/19, /*padding=*/3));
index.Insert(
CacheStorageIndex::CacheMetadata(u"baz", /*size=*/1000, /*padding=*/4));
EXPECT_EQ(3u, index.num_entries());
ASSERT_EQ(3u, index.ordered_cache_metadata().size());
EXPECT_EQ(12 + 2 + 19 + 3 + 1000 + 4, index.GetPaddedStorageSize());
}
TEST(CacheStorageIndexTest, TestMoveOperator) {
CacheStorageIndex index;
index.Insert(
CacheStorageIndex::CacheMetadata(u"foo", /*size=*/12, /*padding=*/2));
index.Insert(
CacheStorageIndex::CacheMetadata(u"bar", /*size=*/19, /*padding=*/3));
index.Insert(
CacheStorageIndex::CacheMetadata(u"baz", /*size=*/1000, /*padding=*/4));
CacheStorageIndex index2;
index2 = std::move(index);
EXPECT_EQ(3u, index2.num_entries());
EXPECT_EQ(3u, index2.ordered_cache_metadata().size());
ASSERT_EQ(12 + 2 + 19 + 3 + 1000 + 4, index2.GetPaddedStorageSize());
EXPECT_EQ(0u, index.num_entries());
EXPECT_TRUE(index.ordered_cache_metadata().empty());
EXPECT_EQ(0u, index.GetPaddedStorageSize());
auto it = index2.ordered_cache_metadata().begin();
EXPECT_EQ(u"foo", it->name);
EXPECT_EQ(12u, it->size);
EXPECT_EQ(2u, it->padding);
it++;
EXPECT_EQ(u"bar", it->name);
EXPECT_EQ(19u, it->size);
EXPECT_EQ(3u, it->padding);
it++;
EXPECT_EQ(u"baz", it->name);
EXPECT_EQ(1000u, it->size);
EXPECT_EQ(4u, it->padding);
EXPECT_EQ(3u, index2.num_entries());
ASSERT_EQ(3u, index2.ordered_cache_metadata().size());
EXPECT_EQ(12 + 2 + 19 + 3 + 1000 + 4, index2.GetPaddedStorageSize());
}
// This test verifies that all u16string cache name that have an invalid UTF-16
// character are stored as is and not replaced by the 'replacement character'.
TEST(CacheStorageIndexTest, TestInvalidCacheName) {
CacheStorageIndex index;
// Insert a cache with an invalid UTF-16 character.
std::u16string invalid_utf16_name = u"bad";
// kUnicodeHighSurrogate is considered an invalid UTF-16 character
// when not followed by a low surrogate.
invalid_utf16_name.push_back(kUnicodeHighSurrogate);
index.Insert(CacheStorageIndex::CacheMetadata(invalid_utf16_name, /*size=*/12,
/*padding=*/2));
// Verify that the cache was inserted.
EXPECT_EQ(1u, index.num_entries());
ASSERT_EQ(1u, index.ordered_cache_metadata().size());
EXPECT_EQ(12 + 2, index.GetPaddedStorageSize());
// Verify that the cache name is stored correctly.
auto it = index.ordered_cache_metadata().begin();
EXPECT_EQ(invalid_utf16_name, it->name);
EXPECT_EQ(12, it->size);
EXPECT_EQ(2, it->padding);
// Verify that the invalid character is stored as is.
const std::u16string& stored_cache_name = it->name;
EXPECT_EQ(stored_cache_name.size(), invalid_utf16_name.size());
for (size_t i = 0; i < invalid_utf16_name.size(); ++i) {
EXPECT_EQ(stored_cache_name[i], invalid_utf16_name[i]);
}
// Attempt to set the cache size and padding for the invalid name.
EXPECT_TRUE(index.SetCacheSize(invalid_utf16_name, 20));
EXPECT_EQ(20 + 2, index.GetPaddedStorageSize());
EXPECT_TRUE(index.SetCachePadding(invalid_utf16_name, 5));
EXPECT_EQ(20 + 5, index.GetPaddedStorageSize());
// Verify the updated size and padding.
EXPECT_EQ(20, index.GetCacheSizeForTesting(invalid_utf16_name));
EXPECT_EQ(5, index.GetCachePaddingForTesting(invalid_utf16_name));
// Delete the cache with the invalid name.
index.Delete(invalid_utf16_name);
EXPECT_EQ(0u, index.num_entries());
ASSERT_EQ(0u, index.ordered_cache_metadata().size());
EXPECT_EQ(0, index.GetPaddedStorageSize());
}
} // namespace content
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